How to disable TFM_CRYPTO_AEAD_MODULE_ENABLED

[Tide]

Hi,

Due to the flash size limitation, we want to reduce the code size of TF-M. After I set CONFIG_TFM_CRYPTO_AEAD_MODULE_ENABLED=n in SDK v2.2.0, the size of TF-M code can be reduced by about 32KB, but the program does not run into the main of the app, but into tfm_hal_system_halt. 


How to turn off TFM_CRYPTO_AEAD_MODULE_ENABLED?
Or how to configure TF-M to reduce code size?

Also, we need to set CONFIG_TFM_PROFILE_TYPE_NOT_SET=y instead of using TF-M mini mode.

[Raoul]

Hi Tide,

We are aware that TF-M takes quite a lot of space, some customers have asked about this recently. I can say that space optimization is a work-in-progress for the TF-M team. As a starting point for now, please take a look at my colleagues reply on this topic:

 RE: Downsizing the TFM with PSA support

Best regards,

Raoul

[Tide]

Hi  Raoul,

Can the function of customizing TF-M be implemented in the next SDK version? Or can my problem be solved in sdk v2.3.0?

[Raoul]

Hi Tide,

From what I can gather, work on this front is in progress but you won't see anything released for at least a few months. Let me know if you want more details on the timeline as that time approaches.

Best regards,

Raoul

[Tide]

Hi Raoul, 

Can you give me your detailed timeline, our product needs next expected version.

[Raoul]

Sorry, I don't have any detailed timeline and we usually also can't share any product timelines with you. If you want to make a request, please contact your Regional Sales Manager.

https://www.nordicsemi.com/About-us/Contact-Us

Were you able to make any improvements at all to your code size, based on the link I sent you?

Best regards,

Raoul

[Tide]

The discussion in the link above ends up using mbedtls, but we need to use TF-M.